Choose your case Every woman is unique so Guerlain brings you the ultimate luxury of customizable lips. Discover Rouge G de Guerlain, the first jewel lipstick to customize to your style. Discover the new IT-COLOR collection and collect countless versions of Rouge G de Guerlain! For this exceptional lipstick, Guerlain has sealed luscious lip care and intense colour into a jewel formula for instant and lasting comfort. Your lips are infused with luminous, long-wear colour.